Clutch and transmission mechanism



W. F. MOTHER. CLUTCH'AND TRANSMISSION MECHANISM.

APPLICATION FILED MAYI'I, 1 21. 1 ,409,396. Patented Mar. 14, 1922. 2swans-sun I.

o Z Q Q f 2} 1 4 Q w w D 6 Q- R m M I N VEN TOR.

Wm WM W. F. MOTTIER.

CLUTCH AND TRANSMISSION MECHANISM.

APPLICATION FILED MAY 17. I921;

1,409,396. I Patented Mar. 14,1922.

2 SHEETS-SHEET Z- INVENTOR.

W Wow ATTORNEY-S 'rss WALTER w MO H R,

calm. oa lvrjeo, TEXAS.

oLU'ronAnn rnanstnssion nncrmmsivn I v Applicationvfiled Ma ra To allwhom it may concern; I i Be it known that L lVAL'rER Flflorrrnn. acitizen of the United States, residing at El Campo, in the county oflVharton and State of Texas, have invented certain new andusefulImprovements in a Clutch and Transmission Mechanism, of whichthefollowing is a specification. This invention relates tonew and usefulimprovements in a clutchand transmission mechanism. i v ,7

One object of the invention isto providea, mechanism of the characterdescribed which is specially'appli'cable to motor vehiclesand; has beendesigned for the operation of the clutch and transmission forv effectingchanges of speed; the particular object is to provide a mechanismthrough which the speed desired may be selected in advance andthenobtained by an automaticshifting of the transmission gears whenthe-clutch is disen-j gaged through. the operation ofthe clutchcontrollinglever, v r I Another object of the invention is to pro vide amechanism of the character described which is so constructedthat whenthe desired speed has been selected, the niechanismwfll be lockedagainst accidental shifting so that -when the clutch is manipulated thedesired speed will always be obtained. 7 V V V A further object is toprovide means which;

prevents the shifting of the transmission mechanism when the speedselective device isv A further featurere'sides in the provision ofmeanswhich prevents theoperatio'n ofsaid selective device whenthe clutchpedal isin operative position.

Astill furtheizfeature resides in the provision of means whichautomatically-throws the-'gear'selecting mechanism out of operativeposition upon release of the clutch pedal. 1 lV'th the above and otherobjectsin view, the invention has particular relation to certain novelfeatures of construction, arrangement of parts and use; an example ofwhich is given'in this specification and illustrated in the accompanyingdrawings, wherein s Figure 1 is a perspective view'of the de vice asapplied to the clutch and transmis sion of the motor vehicle, showingcertain parts removed for the sake of clearness. I

Figure 2 is a fragmentary perspective view Specification oi LettersPatenti l V I aII. 1 4;

1921. Serial 1m 470,336.r

j of the steering column -of-said vehicle, show ing the speed selectivedevice,,and- 1 5 Figure 3 is a plan viewthereof.

-Referring now. more particularly :to the drawings, thenumeral '1'refers to the trans:

'mlssion case provided toflenelose anycon-p ventional form of[transmission mechanism, and the numeral 2 refers; 130 thefsteering:

column. Mounted in the{transmissionicase a are the usual gear shiftingrods 3 and 4"; pro:

vision gbeing thus -made forshifting the;

transmission gears into reverse orlow,:inter-,

mediate and high speed ahea'dl "The outer ends ofjthe gear shifting rods3 andt areupturnedand the-respective links 5 and-:6v-are i l 7 pivotedat one'end to said-upturned "ends;

said links being pivoted at their other ends r r i to eorrespondingendsof the respective neutraliz ing levers and 8 saidqlevers being 1 pivotedat intermediate pointsto-the top,- of said-transmission case. 'Slidablymounted in the transversely aligned bearings 9, 9,. carried by thetransmission;case,, 'there isia. I I

transverse transfer bar 4-510. In the form, shown there are fourjactuatingr rods 11;;12, 13 and-14c, the rods 11 and 12 being pivoted.

at one end to the respective. ends ofthe lever, 7, and the rods 13-and14; being pivoted at one end to therespective ends of; the lever 8, i

These rods work through vertically; elon gated-bearings in a stationaryguide bar 15 which is fixed onthe transmission case and, also passthrough a long slot 16, in the,t11'ansi for bar 10; The free ends of theactuating;

rods carry thev depending studs "17, 18 19 and 20, fSlidablymounted inaLsuitabIe bearing 21 carried by thetransmissjion case there is anactuating bar' 22a, This bar can. ries the cross arm 23, arranged behindthe v studs of the actuating rods and provided to I engage withisaidstuds for.the purposehereinafter specified.- The upper lsideojf the barl2-2is formedwithanlelongated rib 245 3 7' which worksthrough oneof thenotches/25 formed .in the lower edge of the .transferbar 10 when the.actuating vbar. is manipulated and serves. to lock said transfer bar:against movement during; the operation :ofshifting,

the gears. fSecured' at a convenient place,

preferably to the upperend of V thesteering column, there isfa'segmentalrack member26, and rotatably mounted in suitablebearings 27, 27 carriedby said column, there'is'ja manual rod 28 whose upper end is providedthe link 32 is pivoted at one end,v Theother end of this link isconnected to one end of the lever133, said lever being pivoted at anintermediate point to the laterally extending arm 34 of the transmissionoase, and theother end of this lever 33 is connected to andactuates thetransfer bar' lOp Rotatably mounted in suitable bearings, as 35, carriedby the side members 36 of the vehicle frame,

there is a transverse shaft 37, to which 'a'foot' pedal 38 is'fixedi'This shaft hasthe upstanding arm 39'fixed thereto, whose upper end has asliding connecti on with the f'ront end of the actuating bar" 22. Thissliding connection is'efi'ected by meansof a slotted lug 40 which ishinged tothe upper'en d of the arm 39, and a pin 41 which' is carriedand within the range of the, cross arm 23.* "The device is thus setinposition to, shift the by the front end'of' thebar 22 and worksthrough said slot. The shaft 37 is connected to the clutch of thevehicle and through it said clutch may be released;

Asshown in Figures 1, 2 and 3, the device is in neutral position. If itbe desired to' now shift the transmission to low speed ahead, andassuming that a rearward'movev ment of the gear shifting rod 3 willaocom plishthi's result, the manual lever 29rn'ayj be moved two notchesto the right which will operate through the mechanism' 'cle' scribed toshift the transferbar 1O tothe'left; Y

It is here to be noted that the slot 1 6' is formed with acam-shapednotch 42, into which the actuating rod lldrops whenthe transfer bar ismoved, as above indicated, and the Stud 20 will dr -down in front,

transmission mechanism to the selected speed. 'The'pedal 38 is nowdepressed with the result that the clutch actuating shaft 37 will firstdisengage the clutch, while the slot 'ofthe lug 40' is moving onthe pin41 and further movement of said pedal38 will operate to contlnue saidrotation of the shaft 37, exerting a forward pull through thearm 39 uponthe actuating bar 22 and causing the "cross arm 23 to engage xwith thesaid 120 and carry'the sarn'f onwardlyfthus 'operat 111g through theactuating 'rod" ll, the lever 7 and 5 to carry the gear shifting "rod 3jrearwardly' and shift the transmission.

gears to 1 low speed ahead. It is "to be here;

noted thatthe slip joint naecang'the arm is provided "so thelni'tialm'ovement' of the pedal'38 will effect" fi ?declutching'of themotor but will not ope the

I sion mechanism to neutral 'positiong'and V l transmission gears; thebar 22 until afterfthe clutch is V H enga ed, Thepedal 38 isnowrreleajsed and,

crutch spring will operate tof restore the, aot't'iating' bar 22 to itsoriginn' pane-5a.

ing the bar 10 to locate the'required actuating rod in the cam notch42and carry the corresponding stud into the range of the cross arm'23and the pedal 38 is again depressed, again moving the actuating bar 22forwardly. w I

The rear end of the actuating bar 22 is formed with an engagingshoulder43-in its upper side, arranged to engage with-a co'rrespondingshoulder44 carried by the forward 1 end oftheneutr'alizing'bar'45i- The rear'end of this bar carries the crosshead"46whichrides on the links 5 and 6 and isin align-H ment withthe'neutralizing levers 7'7and 8 f When the actuating bar 22 movesforwardly} the cross head 46 engages against *theneutralizing "leversand bringsthem' into sings-g ment," thus operating 'to shift thetransinis thereupon the forward end of the neutraliz ing bar rides up;onto the bearing 21 and is disengaged from the actuating bar22whi'chmoves on forwardly, as above explained, and 95 effects the requiredchange of gear, As one of theactuating'rodsis movedffor g wardly theoppositeend of" theneutr lizing bar, to Which it is attached,i mcive srear wardly and carriesthe cross head to its original position. f s 1 Itis obvious that other changes of speed may be obtained bya suitablemanipulation Q of the manual lever'29in' a similar manner to that abovedescribed. v i: "j lQ hen it is desired to Shiftthetr ansmiS- 1 sionmechanism to neutralpositiondnly this is accomplished by settingthemanual lever 29 in the central notchI30, sh'ownyini Figure 2; an'dwheniu this position the trans-"119 fer bar 10 will be" in neutralposition; that is, the actuating rods 1 1 to 14 ,will lie linlfthe slot16 out of the cam notclgi 42 a-nd'the studs 17 to 20 will be heldup outofjra'ngeof the cross arm 23. When the lji'edal38isthenlde: pressed, theactuating bar 22 will move reg wardlycarrying with it theneutraliging 45until the cross head 46 contacts with and;

aligns the lovers sand 8,;thus bringing the transmission mechanism toneutral position, and asfthei'ba-r 22 continuesto move for-j wardly theneutralizing bar will be disfon-[ :nected therefrom, asexplained,'andlthe or'oss' f arm will pass under the studsbf the actuating rodswithout" further influencing the The rear side of the transfer bar 10has the spaced lugs 47 and pivoted on the case in the rearlofsaidbar,there is albell crank 481- The free" end of "one arm of" the bell mossesin the opposing notch 25 to lock the transfer bar, but thereafter,upon-furthermovement of said bar 22 said rear lugwil'l-contact with saidoverturned end of the rod and actuate the bellcrank to carry the dog 49behind the adjacent lug d7, the dog 49 yielding to permit this. When thebar 22 has moved back far enough to release the rib 24 from the notch 25the forward'lug 52 will contact with the overturned end of the rod 50and actuate the bell crank to carry the dog 19 Y into contact with theopposing lug 4L7 and throw the transfer bar over a sufficient distanceto bring the notches 25 out of alignment with the rib 24. Thetransmission mechanism cannot then be operated until the speed selectivedevice is again set, by'reason of the fact that until this is done therib 2st will lock against the transfer bar 10; and this result isaccomplished automatically upon the release of the pedal and its returnto non-operating position. a

IVhen the clutch has been released and the transmission actuated asexplained the bar 10'will be locked against shifting by the engagementof the rib 24 in the notch 25and the speed selective device cannot beagain set, or the controlling mechanism of the transmission changeduntil the pedal isreleased and returns to non-operating position.

hat I claim is 2- 1. In a motor vehicle, the combination with atransmission mechanism, through which power may be transmitted from themotor at variable rates of speed, of a speed selective device adapted,when actuated, to effect the changes in the gear ratio, said de-' viceincluding gear shifting members connected to the transmission gears, atransfer mechanism and a manually controlled mechanism. through whichsaid transfer mechanism may be shifted to adjust either of said membersto a selected position, a clutch actuating means, an actuating deviceconnected to and actuated by said means, through which the selectedmember is actuated to shift the corresponding transmission gear,interlocking means carried by said transfer mechanism and said actuatingdevice, whereby the former is locked against movement during theoperation of the latter.

2. In a motor vehicle, the combination with a transmission mechanism,through which power may be transmitted from the motorsat variahlerates'sof speed, of a speed selective device'- adaptedwhen actuated, toelfect th'e changes in the gear ratio, -'sa1dde-' viceyinciudinggearshifting members con nected to the transmission gears," a transfermechanism and a I manually controlled mechan'i'sm through iwhic'h "Said"transfenmechw nism may be shiftedtoadjust either of said membersito asele'ctedposition,a clutch actuating means; an actuatingdeviceiconnect-- e'd to andr'a'ctuatedby said "means," through whichthefselected =-'memberr is actuated, to

sin-fame "corresponding" transmission a gear,

an interlocking: meanse'arrmd by saidtrans-v fer mechanism and saidactuating device,

whereby the former is locked against movement during the operation ofthe latter, and means actuated by the actuating device and operating torestore the transmission mechanism to neutral position prior to itsactuation by said selective device. 7

. 3. In a motor vehicle, the combination with a transmission mechanism,through which .power may be transmitted from the motor at variable ratesof speed, of

a speed selective device adapted, when actuated, to effect the changesin the gear ratio,

said device including gearishifting members connected to thetransmission gears, a transfer mechanism and a manually controlledmechanism, through which said transfer mechanism may be shifted toadjust either of'said members to a selected position, a

clutch actuating means, an actuating device connected to and actuated bysaid'means, through which the selected member is actuated to shift thecorresponding transmission gear, interlocking means carried by said;

transfer mechanism and. said actuating device, whereby the former islocked against movement during the operation of the latter,

and means preventing the second operationv of said actuating deviceuntil said manually controlled mechanism tuating means, an actuatingdevice connected to andactuated by said means, through whichthe selectedmember is actuated to shift the corresponding transmission gear, andmeans operating automatically toprevent a subsequent operation of theactuating device until said manually controlled mechanism has been againoperated.

tuating means, an actuatingdevice connect ed to and actuated by saidmeans, through which the selected member is actuated to shift thecorresponding transmission gear, and means automatically shifting thetransfer mechanism into position to prevent a sec- 0nd operation of saidactuating device until said transfer mechan sm is again manuallyshifted.

In testimony whereofl have signed my name to this specification in thepresence of two subscribing Witnesses. r

. WALTER F. MOTTIER.

' lVitnesses: s

, R. M. SMITH,

WM. A. CATHEY.

